Easy to apply and supplied in packs of 1000, these Pull Tight Security Seals are a great choice for security. Designed for application to fire extinguishers for maintenance checking and in order to highlight evidence of tampering, their 176mm length means they can also be attached to fire exit doors, first aid boxes and more. The low break strength allows them to be removed easily in case of emergency. This pack contains 1,000 numbered yellow seals.